Date Difference
Days and hours between two dates.
How to use Date Difference
Date Difference — Count the days, hours, and minutes between two dates or timestamps. Free to use in D2i DevTools — no account required.
Steps
- Fill in Start. This field is required.
- Fill in End. This field is required.
- Click Run and copy the result under the form.
Frequently asked questions
What is Date Difference used for?
Use it for a deadline, a certificate window, or the gap between two log lines.
How do I use the free online Date Difference tool?
Fill in Start. This field is required. Fill in End. This field is required. Click Run and copy the result under the form.
What can I paste or upload into Date Difference?
Enter a start and an end as YYYY-MM-DD, a date with a time, or RFC3339. A date alone is midnight UTC.
What output does Date Difference give me?
A signed day, hour, and minute breakdown, plus the exact duration. A later start produces a negative gap.
Is Date Difference free, and is my input private?
Yes — Your input is processed in memory for this request only. It is not saved to disk or the database, and it is cleared after the tool finishes.
Which timezone is a plain date in?
A value with no offset is read as UTC. An RFC3339 time keeps its offset and the gap is the absolute difference.
Inputs are processed in memory only and are not saved to disk or the database. Data exists only for the duration of your request.